Adam Carolla | 'Too Late with Adam Carolla,' 2005

Patrick Downs / Los Angeles Times

On air for: One season. Cause of cancellation: The late-night talk show never reached a notable viewership level. Comedy Central pushed the show's time slot later and dropped its live audience before finally canceling it several months later. Most memorable moment: Steve-O ("Jackass" and "Wildboyz") came intoxicated to his on-set interview, yelling obscenities and tackling Carolla. Where he is now: Since 2009, Carolla has hosted "The Adam Carolla Show," a free podcast that set a Guinness World Record for most downloaded podcast.

On air for: One season. Cause of cancellation: The late-night talk show never reached a notable viewership level. Comedy Central pushed the show's time slot later and dropped its live audience before finally canceling it several months later. Most memorable moment: Steve-O ("Jackass" and "Wildboyz") came intoxicated to his on-set interview, yelling obscenities and tackling Carolla. Where he is now: Since 2009, Carolla has hosted "The Adam Carolla Show," a free podcast that set a Guinness World Record for most downloaded podcast. (Patrick Downs / Los Angeles Times)

On air for: One season. Cause of cancellation: The late-night talk show never reached a notable viewership level. Comedy Central pushed the show's time slot later and dropped its live audience before finally canceling it several months later. Most memorable moment: Steve-O ("Jackass" and "Wildboyz") came intoxicated to his on-set interview, yelling obscenities and tackling Carolla. Where he is now: Since 2009, Carolla has hosted "The Adam Carolla Show," a free podcast that set a Guinness World Record for most downloaded podcast.